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In the following GridBagLayout code, I'm expecting the specified minimum size of JButton btn2 to be respected when the JFrame is resized to be made smaller. But when I make the JFrame smaller, the btn2 gets smaller than its minimum size and then vanishes. Can someone point me in the right direction of what I'm doing wrong? Maybe I have to set the minimum size of the JPanel that contains the buttons? Any help is appreciated, thanks! JFrame frame = new JFrame(); frame.setSize(400,300); frame.setLocationRelativeTo(null); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); JPanel panel = new JPanel(); panel.setMinimumSize(new Dimension(400,300)); panel.setBackground(Color.RED); panel.setLayout(new GridBagLayout()); GridBagConstraints gbc = null; JButton btn1 = new JButton("btn1"); btn1.setPreferredSize(new Dimension(150,50)); btn1.setMinimumSize(new Dimension(150,50)); gbc = new GridBagConstraints(0, 0, 1, 1, 0.0, 0.0, GridBagConstraints.NORTHWEST, GridBagConstraints.NONE, new Insets(0,0,0,0), 0, 0); panel.add(btn1, gbc); JButton btn2 = new JButton("btn2"); btn2.setPreferredSize(new Dimension(150,150)); btn2.setMinimumSize(new Dimension(150,150)); gbc = new GridBagConstraints(1, 0, 1, 1, 1.0, 1.0, GridBagConstraints.NORTHWEST, GridBagConstraints.BOTH, new Insets(0,0,100,100), 0, 0); panel.add(btn2, gbc); frame.getContentPane().add(panel); frame.setVisible(true);

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